1 A highly-skilled MotoGP rider who is capable of winning but has yet to prove that he can battle long-term with the Recognized Aliens (i.e. Valention Rossi, Casey Stoner, Jorge Lorenzo and Dani Pedrosa) of MotoGP.
2. A potential MotoGP Alien-in-the-making.
E.g. Ben Spies is a very good rider, but being pipped by Casey Stoner on the line last week in Valencia showed that he needs to up his game and is still lingering in the demi-alien territory.